Exige on LTS Yoko's - track pressure?
Discussion
I'm not really up on Yota engined car tyre pressures but the general consensus for track use on 48s is to to run them hot at the cold book pressures, if that makes sense.
Will also depend a lot on the temperature and whether it's raining.
Suggest you go out in the 1st session on normal road pressures (e.g. 24/26 for my car), see how the car feels, check the pressures at the end of the session and let enough air out so they come back down to 24/26.
I know it doesn't sound very scientific but I generally let a little air out after each session until it feels "right"!
If it's wet, probably leave them on road pressures frankly.
FWIW if it's dry I go out on ~19/20 before a 20-min session.
Cheers,
Andrew.
www.elisetrophy.com
Will also depend a lot on the temperature and whether it's raining.
Suggest you go out in the 1st session on normal road pressures (e.g. 24/26 for my car), see how the car feels, check the pressures at the end of the session and let enough air out so they come back down to 24/26.
I know it doesn't sound very scientific but I generally let a little air out after each session until it feels "right"!
If it's wet, probably leave them on road pressures frankly.
FWIW if it's dry I go out on ~19/20 before a 20-min session.
Cheers,
Andrew.
www.elisetrophy.com
Edited by ajk on Sunday 27th April 09:57
Just ran through my manual and it states 29 psi (cold) front and back and advises that pressures increase by 4-8 psi when hot.
For track use they just advise that you check the pressures beforehand (assume the recommended road pressures?). I would think for legal reasons they won't go into print for track pressures in case they open themselves up to lawsuits?
A good bet would be to lower them 4 psi to 25 psi from the off and see how they work - I'm not sure I would drop them all the way to 21 psi, although someone with far more experience may help - have you tried Exiges.Com?
For track use they just advise that you check the pressures beforehand (assume the recommended road pressures?). I would think for legal reasons they won't go into print for track pressures in case they open themselves up to lawsuits?
A good bet would be to lower them 4 psi to 25 psi from the off and see how they work - I'm not sure I would drop them all the way to 21 psi, although someone with far more experience may help - have you tried Exiges.Com?
ive always done as AJK states - start off on road pressures, go and do 3 or 4 laps and warm them up, come back in and drop them to the road pressures. Once Id done a few days and gained confidence Id just drop them 4 or 5 psi at the start.
When i took my Aston on track last year at Snetterton we did exactly the same - although this needed about 8 psi dropping out of of the tyres...they got real warm on that day, being a much heavier car
...it went well though and I surprised a few Elise/Exige drivers that day 
When i took my Aston on track last year at Snetterton we did exactly the same - although this needed about 8 psi dropping out of of the tyres...they got real warm on that day, being a much heavier car
...it went well though and I surprised a few Elise/Exige drivers that day If I go out on road pressures on a dry track - say 25F 26R, I can get the tyres up to 38R and 35F within a couple of laps. Handling goes badly off by then. I do pretty much what AJK suggests above - mainly end up with 26-28 HOT pressures. Depends on conditions and track though.
Bear in mind Andrew (AJK) races his car and does have experience in these matters.
Bear in mind Andrew (AJK) races his car and does have experience in these matters.
Edited by shangani on Sunday 27th April 21:28
Gassing Station | Elise/Exige/Europa/340R | Top of Page | What's New | My Stuff